Jalv is a simple but fully featured LV2 host for
Jack. It runs LV2 plugins and exposes their
ports as Jack ports, essentially making any LV2 plugin function as a
Jack application.

Jalv is a small program which is useful, but also intended to be an
appropriate test host for plugin development. It runs plugins from the
command line with no user interaction, is light enough to run in
valgrind, and is capable of dumping all plugin to/from UI communication
in a human readable format.

For testing with various host toolkits, there are several Jalv
executables: jalv, jalv.gtk, jalv.gtkmm, and jalv.qt. The jalv and
jalv.gtk programs are suitable for production use by users, the others
are less complete and intended for developer testing only.